Search a number
-
+
12927471 = 39074751
BaseRepresentation
bin110001010100…
…000111101111
3220022210011020
4301110013233
511302134341
61141025223
7214611264
oct61240757
926283136
1012927471
11732a667
1243b5213
1328a81bb
141a0726b
151205566
hexc541ef

12927471 has 8 divisors (see below), whose sum is σ = 17259264. Its totient is φ = 8607000.

The previous prime is 12927469. The next prime is 12927479. The reversal of 12927471 is 17472921.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12927471 - 21 = 12927469 is a prime.

It is a super-3 number, since 3×129274713 (a number of 22 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12927479) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 346 + ... + 5096.

It is an arithmetic number, because the mean of its divisors is an integer number (2157408).

Almost surely, 212927471 is an apocalyptic number.

12927471 is a deficient number, since it is larger than the sum of its proper divisors (4331793).

12927471 is an equidigital number, since it uses as much as digits as its factorization.

12927471 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5661.

The product of its digits is 7056, while the sum is 33.

The square root of 12927471 is about 3595.4792448295. The cubic root of 12927471 is about 234.6953710888.

The spelling of 12927471 in words is "twelve million, nine hundred twenty-seven thousand, four hundred seventy-one".

Divisors: 1 3 907 2721 4751 14253 4309157 12927471